AIM:To explore the role of α7 nicotinic acetylcholine receptor (α7nAChR) in anti-inflammation of glucocorticoids (GCs) at physiological concentrations .METHODS: MTT assay was used to measure the viability of BV-2 cells, which were processed by hydrocortisone at different concentrations .On the basis of inflammatory model induced by LPS in BV-2 cells, experimental groups were divided as follows:(1) control;(2) LPS;(3) GCs+LPS;(4) methyl-lycaconitine ( MLA)+GCs+LPS.The levels of TNF-αand IL-1βin the cell supernatants were detected by ELISA .RE-SULTS:Hydrocortisone at concentrations of 2 000 and 1 000 nmol/L decreased the cell viability to (76.9 ±5.5)% and (90.8 ±7.3)%, respectively, indicating the cellular injury by GCs at over-physiological doses.LPS significantly induced the releases of TNF-αand IL-1βin a time-and dose-dependent manner in BV-2 cells.Hydrocortisone at physiological con-centrations (500 and 250 nmol/L) reduced the releases of TNF-αand IL-1βin BV-2 cells stimulated by LPS, and MLA at concentration of 10 nmol/L antagonized the anti-inflammatory effect of GCs .CONCLUSION:α7nAChR is involved in the anti-inflammatory effect of the physiological concentrations of GCs .

Using RT-PCR, we can detect measles virus hemagglutinin gene (H gene) of 635bp length directly from measles vaccine strain Shanghai-191, Edmonston strain, nasopharyngeal aspirates and throat swabs of the measles patients. The primers of RT-PCR based on H gene sequence of measles virus did not give the same products from rubella virus and influenza viruses (A1, A3, B). By second PCR amplification, the minimum quantity of measles virus required to give a positive signal was<0.01TCID50. Since the IgM antibody positive rate in early stage of measles patients is always low, the specificity and sensitivity of RT-PCR method may help diagnosing measles cases.

The characteristics and advantages of traditional Chinese medicine ( TCM ) diagnosis and treatment of chronic liver diseases are conducted on the individualized treatment based on TCM syndrome classification . In this study , the analysis of systems biology was carried out for TCM syndrome classification in chronic hepatitis B and posthepatitic cirrhosis . The relationship between TCM syndrome classification and genetic polymorphism , the difference of genes and protein expression profiles , the difference of urine metabolite , and the molecular mechanism of Different TCM Syndrome for Same Disease and Same TCM Syndrome for Different Diseaseswere discussed . The results showed that there are molecular biological basis in TCM syndrome classification in hepatitis B and posthepatitic cirrhosis . The systems biology based syndrome identification methods may be bene-ficial to form a new classification , and provide reference for the diagnosis and individual therapy of hepatitis B and posthepatitic cirrhosis .

AIM:To evaluate treatment value of Xihuang Pill combined gemcitabine for advanced pancreatic cancer patients.METHODS:Thirty-two patients with advanced pancreatic cancer were randomly divided into A group and B group,treated with gemcitabine chemotherapy and traditional Chinese medicine Xihuang Pill+chemotherapy treatment,respectively.The changes of the solid tumor,serum CA19-9,physical status,clinical symptoms and toxicity were observed.RESULTS:B group(Xihuang Pill combined with gemcitabine)clinical return ratio(CR+PR+NC)was better than A group(gemcitabine).There was significant difference between two groups in the reduction of serum CA19-9 level,Karnofsky score increased,the rate of symptom improvement,Leukopenia reduction(P

Objective To compare the clinical effect for treatment of scapula neck or body fractures by straight incision approach and the Judet approach.Methods From July 2001 to July 2011,32 patients with scapula neck or body fractures were treated using the two different approaches:(1) the straight incision approach in 15 patients including 11 males and 4 females,the average age of 38.10 years,fractures classified by Ada-Miller including 4 ⅡA,6 ⅡB and 5 Ⅳ; (2) the Judet approach in 17 patients including 12 males and 5 females,the average age of 39.47 years,fractures classified by Ada-Miller including 5 ⅡA,4 ⅡB and 8 Ⅳ.All patients were followed up.Intraoperative data and postoperative pain of two groups were compared by visual analogue score (VAS),the efficacy were evaluated by Rowe-Zarins scores and the patient's postoperative shoulder function were assessed by Constant-Murley functional score.Results All fractures were preliminary healed after 8 weeks of surgery,there was no wound infection,no internal fixation loosening,no shoulder deformity and other complication.Length of incision,operative time and blood loss of straight incision approach was 6.73±0.96 cm,58.67±4.39 min,94.25±6.14 ml and length of incision,operative time and blood loss of Judet approach was 18.88±1.41 cm,82.24±4.49 min,227.77±23.08 ml.VAS of straight incision approach and Judet approach were 2.60±1.55 and 4.65±1.93,mild and moderate postoperative pain evaluated by VAS were significant differences between two groups.The excellent rate by Rowe-Zarins scores of straight incision approach and Judet approach were 93.3％(14/15) and 88.2％(15/17),they were no significant differences.There was no significant differences in the shoulder joint mobility and muscle strength of Constant-Murley functional score between two groups.However,pain and daily life of Constant-Murley functional score were significant differences between two groups and Constant-Murley functional score of straight incision approach and Judet approach were 85.60±3.31 and 80.65±3.44.Conclusion Compared with Judet approach,straight in cision approach has many advantages,such as a short time of surgery,minor injury,light postoperative pain,good postoperative functional recovery.It is the better surgical approach for the treatment of scapular fractures.

Objective To summarize the characteristics of ecthyma gangrenosum and explore its significance in early diagnosis of pseudomonas aeruginosa sepsis in children.Methods We retrospectively reviewed the medical records of 11 children with ecthyma gangrenosum who were hospitalized at Guangzhou women and children's medical center between May 2008 and Apr 2011.Results Eight cases were male and 7 were less than twelve months,the oldest was 2 years old,all of them were diagnosed as Pseudomonas aeruginosa spesis.Two patients had a single lesion,and the others had multiple lesions.Ecthyma gangrenosum located on the trunks in 7 cases,on anogenital areas in 5 cases,on extremities in 5 cases and on faces in 3.The lesions appeared on day 2 to day 10.On average,they developed on day 5.Seven patients developed ecthyma gangrenosum before admission,the course of the illness before admission was 6 days.Fever and multiple organ dysfunction occurred in all the patients and their cultures grew pseudomonas aeruginosa,blood cultures were positive in 8 cases,the others were isolated psudomonas aeruginosa from tissue of the lesion,discharge,ascites,pleural effusion,respectively.The time of ecthyma gangrenosum appeared was earlier than the time of the culture results reported.All of the patients were started empiric antibiotics therapy on admission,the initial antibiotic regimen was appropriate in 9 patients,8 needed surgical intervention,4 were treated with continuous blood purification.Ten patients survived and 2 died,the hospital stay was from 1 to 63 days,the average was 30.Conclusion Ecthyma gangrenosum is a known cutaneous manifestation of pseudomonas aeruginosa sepsis,which is helpful for early diagnosis and treatment,and then the outcome will be improved.

Objective To investigate the effects of epinephrine in sepsis-associated lung injury in rats. Methods Thirty SD rats were randomly divided into three groups(n =10 per group):control group received intravenous 0. 9% saline 2. 4 ml/( kg·h ); LPS group received intravenous LPS ( 6 mg/kg ); epi-nephrine treatment group received an infusion of epinephrine 0. 6μg/( kg·min) after LPS intravenous injec-tion . Blood samples were taken at 2 h and 6 h after LPS injection and the levels of serum tumor necrosis factor ( TNF)-α,interleukin( IL)-6 and IL-10 were detected. The rats were sacrificed at 6 h. The lung tissues and bronchoalveolar lavage fluid( BALF) were collected. Pathological changes of the lung tissues were observed under light microscope. Water content of lung,expression of TNF-α,IL-6 and IL-10 in BALF and in serum were detected. Results (1) The water content of lung in LPS group significantly increased compared with that in control group(85. 24% ± 5. 87% vs. 70. 19% ± 5. 87%) and epinephrine group(78. 00% ± 6. 41%) (P<0. 05). (2)Pathological examination showed that LPS could cause pulmonary capillary hyperemia,ede-ma,inflammatory cells infiltration. Atelectasis and alveolar edema were found in small number of lung tissue. Compared with LPS group, epinephrine ameliorated the lung pathological injury. ( 3 ) Compared with LPS group,serum levels of TNF-α and IL-6 significantly decreased ( P <0. 05 ) , whereas IL-10 increased ( P <0. 05) in epinephrine group. (4)Compared with LPS group,BALF levels of TNF-α[(78 ± 9)ng/L vs. (102 ±16)ng/L]andIL-6[(268±42)ng/Lvs.(347±50)ng/L]significantlydepressed(P<0.05),whereas BALFlevelsofIL-10[(210±23)ng/Lvs.(146±34) ng/L]elevated(P <0.05) inepinephrinegroup. Conclusion Epinephrine could reduce the acute lung injury caused by LPS. Its protective effect may be re-lated to decreasing the levels of TNF-α and IL-6,elevating IL-10 level.

AIM:To evaluate treatment value of Xihuang Pill combined gemeitabine for advanced pancreatic cancer patients.METHODS:Thirty-two patients with advanced pancreatic cancer were randomly divided into A group and B group,treated with gemcitabine chemotherapy and traditional Chinese medicine Xihuang Pill+chemotherapy treatment,respectively.The changes of the solid tumor,serum CA19-9,physical status,clinical symptoms and toxicity were observed.RESULTS:B group(Xihuang Pill combined with gemcitabine)clinical return ratio (CR+PR+NC)was better than A group(gemcitabine).There was significant difference between two groups in the reduction of serum CA19-9 level,Karuofsky score increased,the rate of symptom improvement,Leukopenia reduction(P＜0.05).CONCLUSION:Integrating Xihuang Pill and gemcitabine in the treatment of advanced pancreatic cancer:delaying of tumor growth,reducing of CA19-9 level,improving of the clinical symptoms and life quality of patients,reducing of neutropenia in patients(chemotherapy-induced toxicity),shows good clinical benefit response.

Objective To systematically evaluate the effectiveness of intermittent nasogastric feeding on enteral nutrition of critical patients. Methods The relevant randomized controlled trials were searched in the Cochrane Library, PubMed, EMbase, Web of Science, JBI Library and the databases of China National Knowledge Infrastructure (CNKI), China Scientific Journal Database by VIP (VIP), Wanfang Database. The studies were selected according to the inclusion and exclusion criteria by two reviewers. Meta- analysis was conducted by using RevMan 5.2. Results Nine RCTs were included involving 558 patients. The results of meta- analysis showed that intermittent nasogastric feeding was greater than continuous pump feeding in the incidence of constipation, OR=0.32, 95%CI 0.14~0.71, P<0.05, the difference was significant. However, they were alike in the incidences of diarrhea, aspiration pneumonia, gastric residuals, vomiting, abdominal distension and effects of nutrition, there was no statistical difference (P>0.05). Conclusions Intermittent nasogastric feeding and continuous pump feeding did not affect the incidence of diarrhea, aspiration pneumonia, gastric residuals, vomiting, abdominal distension and the effects of nutrition. However, the incidence of constipation was significantly less in patients receiving intermittent nasogastric feeding.

Objective To develop a loop-mediated isothermal amplification method for rapid diag-nosing Vibrio cholerae O139 in inspection department and small-scale laboratory. Methods Four primers (2 inner primer and 2 outer primer) for the LAMP test were designed by targeting the wbfR gene of Vibrio chol-erae O139, and the reaction condition and reaction system of LAMP were optimized. Thirty Vibrio cholerae O139, 13 Vibrio cholerae reference strains, 10 O1 biotype Vibrio cholera* and 32 other enterobacterias were analyzed and the LAMP results were determined by visual inspection or electrophoretie analysis . Results All of the Vibrio cholerae O139's amplification products were observed as green by visual inspection and had a ladder-like pattern on the gel, but O1 biotype Vibrio cholera* and other enterobacteria's products were dis-played as orange by visual examination and had no ladder-like pattern on the gel. In addition, the reaction time of the LAMP method was only 1.5 h and the detection limit of this assay was 63 CFU/reaction. Con-clnsion LAMP assay targeting the wbfR gene of Vibrio cholera* O139 is rapid, specific, and sensitive for the detection of Vibrio cholerae O139. This method not only reduced the dependence of complicated equip-ment but also had a potential for wider use in inspection department, small-scale laboratory, emergency mo-tor vehicles and field survey.